#include <unistd.h>
#include <sys/timerfd.h>
#include <vector>
#include <string>
#include <fstream>
#include <iostream>

using namespace std;

int main()
{
    int choice = 1;
    switch (choice)
    {
    case 1:
        if(!choice) break;
        choice = 3;
    case 2:
        if(!choice) break;
        cout << "2" << endl;
    case 3:
        if(!choice) break;
        cout << "3" << endl;
    }
}